I agree with Kevin Randall. Creating a new authority in this case may be less necessary, since the existing "undifferentiated" authority has always in fact represented only one person; but doing so also saves us from having to add special-case rules for rare exceptions.  The only downside to following the standard practice for dealing with undifferentiated name authorities is the need to relink bib records to a new authority, but the number of relevant bib records in OCLC is fairly small--18 by my count, of which 3 or 4 look to be for a different Larissa Forster.  Hope the new authority can help resolve the how-many-Larissa-Forsters question.


On Fri, Oct 17, 2014 at 2:11 PM, Kevin M Randall <[log in to unmask]> wrote:

It was my understanding that undifferentiated records are *not* to be turned into differentiated records. Rather, when only one identity remains on the record, a new NAR will be created for that identity, and the undifferentiated record will be deleted. At least, that's the policy according to how I read DCM Z1 008/32.


Kevin M. Randall

Principal Serials Cataloger

Northwestern University Library

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(847) 491-2939


Proudly wearing the sensible shoes since 1978!


From: Program for Cooperative Cataloging [mailto:[log in to unmask]] On Behalf Of Rebecca Uhl
Sent: Friday, October 17, 2014 1:14 PM
To: [log in to unmask]
Subject: [PCCLIST] undifferentiated name headings


I have a situation regarding an undifferentiated name authority, n 2003019581, which I haven’t seen addressed as yet.  I understand what we should do when establishing a person on an undifferentiated authority on his/her own; I also understand what to do when the last entity on such a record is established on its own.  But what do we do when the existing undifferentiated name authority contains two names which end up being the same person?   We have information that Larissa Forster (the entity on the undifferentiated record) is both the author of Wasser *and* the editor of Namibia-Deutschland eine geteilte Geschichte, the two 670s on the existing record.


Can we simply change this record into a differentiated record, remove the two bracketed 670s and add our additional information?  Or do we need to create an entirely new record, copying all the existing information and adding our new information, then report the existing record for deletion?




Becky Uhl
Science Cataloger/Authority Control Coordinator
Arizona State University Libraries
(480) 965-9802
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Stephen Hearn, Metadata Strategist
Data Management & Access, University Libraries
University of Minnesota
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Minneapolis, MN 55455
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